Indicators on Yamaha RX100S - poorly

[Jammy-G]

Hello,

Just bought this bike and its all about ready for MOT, yet the rear indicators fail to work.

Pulled off the seat and the bulbs are fine, can't seem to find what the problem is, or where to look really..

Are there any prone spots to where a problem which could affect these back two could lie?

Cheers,

James

[Kickstart]

Hi

Not sure if the RXS is 6v or 12v. However firstly make sure the battery has plenty of charge, and check them with the engine running.

After that check the bulbs are correct (especially if the electrics are 6v, as someone might have fitted a 12v bulb). Also check the relay.

All the best

Keith
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[ZaphodBeeble]

Another thing to do is rev the engine slightly with the indicators on as these bikes don't have a very powerful alternator. You may need that extra bit of charge to get the relay working properly. Honda CG's are the same if the battery isn't fully charged.
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[Jammy-G]

Thanks,

I'll have a look at the bulbs now then, one of the indicators started to work, but its not very bright at all.. The front 2 work fine, so the relay is working, must be something to do with the wires from the front to rear that is common to both.

I'll keep looking Thanks for your help.

James

[Jammy-G]

Just followed the wires around, tested bulbs and everything seems ok I cant find anything wrong.. rear indicators don't work and rear left is very dim.

It's a new battery and front ones are working as normal I don't understand !!

Have to fix it before MOT on Sat, any help would be appreciated.

Cheers,

James

[Kickstart]

Hi

Not sure on the RXS, but do the rear indicators earth through the rear mudguard or something like that? Try the indicators and try running an extra earth wire back to them.

However the problem could still well be the wrong size of indicator bulbs.

All the best

Keith
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[cliff]

I am almost certain the 100 is 6v.
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[Jammy-G]

Yeah, it is 6v. Bulbs are fine - correct voltage and wattage etc.

I bought it with a new battery fitted, could it be a case of the battery not being charged?

There is one wire from the rear indicators, I cant see it earth anywhere.

The wiring looks ok to me.. about putting a new wire to it, from where to where?
Cheers.

[Kickstart]

Hi

There should be 2 wires to each indicator. One will feed them power, the other will go to earth (eventually). Use a multimeter and find which one is earth, then run an extra wire from that to the earth terminal of the battery (make certain you get the right wire and terminal as otherwise sparks will ensure.

All the best

Keith
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[Jammy-G]